To use Greek letters in a plot command, for instance to label the axes, set the appropriate font option to SYMBOL. Then, when you enter a letter, the corresponding Greek letter is used. For example, enter "r" for "rho", and is displayed.

The following is a list of corresponding Greek symbols.

Keyboard

Produces the

Symbol

Key

Symbol For

a

alpha

b

beta

c

chi

d

delta

e

epsilon

f

phi

g

gamma

h

eta

i

iota

j

variant on phi

k

kappa

l

lambda

m

mu

n

nu

o

omicron

p

pi

q

theta

r

rho

s

sigma

t

tau

u

upsilon

v

variant on pi

w

omega

x

xi

y

psi

z

zeta

A

Alpha

B

Beta

C

Chi

D

Delta

E

Epsilon

F

Phi

G

Gamma

H

Eta

I

Iota

J

variant on theta

K

Kappa

L

Lambda

M

Mu

N

Nu

O

Omicron

P

Pi

Q

Theta

R

Rho

S

Sigma

T

Tau

U

Upsilon

V

variant on sigma

W

Omega

X

Xi

Y

Psi

Z

Zeta

In this example, we set the label font for the plot to SYMBOL and label the axes and .

>

plot(sin(r), r=0..3, labels=["r", "Y(r)"], labelfont=[SYMBOL]);

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You can also use typeset math in a plot command to enter 2-D math, including Greek symbols, anywhere in a plot where text is allowed. See plot/typesetting for details.